Junior Embedded Linux Engineer – Yocto & Secure OS (On-Site)

Accelint Holdings LLC; San Diego (CA); On-site; USD 100,000 - 120,000; Full time

Benefits offered by this job

Paid Time Off

Medical, Dental & Vision Insurance

401k Matching

Job summary

Lyntris, a defense technology company, is seeking a Junior Operating Systems Engineer (Embedded Linux / Yocto) for an on-site role in San Diego, CA. This position requires a U.S.

national security clearance and involves building and maintaining Linux images with Yocto, hardening, and debugging on embedded hardware. The role emphasizes hands-on development, documentation, and collaboration within cross-functional teams.

Qualifications

• Build and maintain custom Linux images using the Yocto Project (recipes, layers, BitBake, kernel configuration)
• Immutable OS image architecture with secure boot and update tooling
• Debug boot, kernel, drivers, and userspace issues on embedded hardware
• Documentation for build processes, image releases, and provisioning workflows
• Familiarity with embedded Linux build systems (Yocto/Buildroot) and related tooling
• Knowledge of secure boot, TPM, disk encryption, or FIPS concepts

Responsibilities

• Build and maintain custom Linux images using the Yocto Project (recipes, layers, BitBake, kernel configuration)
• Support an immutable, A/B-updatable OS image architecture, including secure boot and update tooling
• Package, integrate, and troubleshoot system services, drivers, and third-party software on embedded hardware
• Contribute to OS hardening efforts (FIPS mode, secure boot, compliance-driven configuration)
• Debug boot, kernel, driver, and userspace issues on real appliance hardware
• Write clear documentation for build processes, image releases, and provisioning workflows

Skills

Yocto Project

Embedded Linux

Buildroot

Security hardening

Kernel debugging

Education

Bachelor's degree in Computer Science or Electrical Engineering

Tools

Suricata

Zeek

Packet capture

Job description

Lyntris, a defense technology company, is seeking a Junior Operating Systems Engineer (Embedded Linux / Yocto) for an on-site role in San Diego, CA. This position requires a U.S.

national security clearance and involves building and maintaining Linux images with Yocto, hardening, and debugging on embedded hardware. The role emphasizes hands-on development, documentation, and collaboration within cross-functional teams.